As far as i know, you can play directly from wallet in luckybit. You just need to copy their address and send it amount which they needed to play/gamble. They have plinko games, so once your deposit come thru them, you can watch your bet
I do no think it is the one asked by OP. As per my understanding, OP is looking for a site where he can play/login using his wallet. There were some sites uses this kind of feature but most of then are ethereum based gambling site where users are able to login using metamask. I myself prefer to avoid such sites because I prefer to use common site where I need to send deposit first to my account instead of connecting my wallet to a gambling site.
If I'm not wrong, what's been requested is something similar to the gambling done on directbet which is the most popular gambling site with cryptocurrency acceptance till date. As in the quote sending from a wallet directly to the game is possible with those kind of scripts. If the need is a decentralized one, then it is possible only through the ethereum smart contract which at present isn't much available.